oj.uz

Submission #940640

# Submission time Handle Problem Language Result Execution time Memory
940640 2024-03-07T12:30:58 Z shenfe1 Wombats (IOI13_wombats) C++17
0 / 100
 80 ms 262144 KB 
#include <bits/stdc++.h>

#pragma optimize("Ofast")
#pragma target("avx2")
#pragma oprimize("unroll-loops")

using namespace std;

#define ll long long
#define ld long double
#define pb push_back
#define pf push_front
#define pii pair<int,int>
#define all(v) v.begin(),v.end()
#define F first
#define S second
#define mem(a,i) memset(a,i,sizeof(a))
#define sz(s) (int)s.size()
#define y1 yy
#define ppb pop_back
#define lb lower_bound
#define ub upper_bound
#define gcd(a,b) __gcd(a,b)
#define in insert
// #define int ll

const int MAX=201;
const ll inf=1e9;  
const int mod=1e9+7;
const int mod1=1e9+9;
const ld eps=1e-9;

int dx[8]={1,0,-1,0,1,-1,-1,1};
int dy[8]={0,1,0,-1,1,-1,1,-1};

int binpow(int a,int n){
  if(!n)return 1;
  if(n%2==1)return a*binpow(a,n-1);
  int k=binpow(a,n/2);
  return k*k;
}

#include "wombats.h"

int A[5001][MAX];
int B[5001][MAX];
int n,m;
int d[MAX][5001][MAX];

struct node{
  int d[MAX][MAX];
  int l,r;
  node(){
    for(int i=0;i<=200;i++){
      for(int j=0;j<=200;j++){
        d[i][j]=inf;
      }
    }
  }
}t[2000];

node mrg(node a,node b){
  node res;
  res.l=a.l;
  res.r=b.r;
  int opt[201][201];
  mem(opt,0);
  for(int i=0;i<=m;i++){
    opt[i][m]=m-1;
  }
  for(int i=0;i<m;i++){
    for(int j=m-1;j>=0;j--){
      int l=(i-1>=0?opt[i-1][j]:0);
      int r=opt[i][j+1];
      for(int k=l;k<=r;k++){
        if(a.d[i][k]+b.d[k][j]>res.d[i][j]){
          res.d[i][j]=a.d[i][k]+b.d[k][j];
          opt[i][j]=k;
        }
      }
    }
  }
  return res;
}

void build(int v,int tl,int tr){
  if(tl==tr){
    t[v].l=tl*10;
    t[v].r=(tl+1)*10;
    t[v].r=min(t[v].r,n-1);
    // cout<<t[v].l<<" "<<t[v].r<<"\n";
    for(int i=0;i<m;i++){
      vector<int> prv(m);
      prv[i]=0;
      for(int j=i+1;j<m;j++)prv[j]=prv[j-1]+A[t[v].r][j-1];
      for(int j=i-1;j>=0;j--)prv[j]=prv[j+1]+A[t[v].r][j];
      for(int j=t[v].r-1;j>=t[v].l;j--){
        int pmn[201];
        int smn[201];
        pmn[0]=prv[0]+B[j][0];
        for(int k=1;k<m;k++){
          pmn[k]=min(pmn[k-1]+A[j][k-1],prv[k]+B[j][k]);
        }
        smn[m-1]=prv[m-1]+B[j][m-1];
        for(int k=m-2;k>=0;k--){
          smn[k]=min(smn[k+1]+A[j][k],prv[k]+B[j][k]);
        }
        for(int k=0;k<m;k++){
          prv[k]=min(smn[k],pmn[k]);
        }
        // cout<<i<<" "<<j<<"\n";
        // for(int j=0;j<m;j++)cout<<prv[j]<<" ";
        // cout<<"\n";
      }
      for(int j=0;j<m;j++){
        t[v].d[i][j]=prv[j];
      }
    }
    return;
  }
  int tm=(tl+tr)/2;
  build(2*v,tl,tm);
  build(2*v+1,tm+1,tr);
  // cout<<"???\n";
  t[v]=mrg(t[2*v],t[2*v+1]);
}

void update(int v,int tl,int tr,int pos){
  if(tl==tr){
    t[v].l=tl*10;
    t[v].r=(tl+1)*10;
    t[v].r=min(t[v].r,n-1);
    // cout<<t[v].l<<" "<<t[v].r<<"\n";
    for(int i=0;i<m;i++){
      vector<int> prv(m);
      prv[i]=0;
      for(int j=i+1;j<m;j++)prv[j]=prv[j-1]+A[t[v].r][j-1];
      for(int j=i-1;j>=0;j--)prv[j]=prv[j+1]+A[t[v].r][j];
      for(int j=t[v].r-1;j>=t[v].l;j--){
        int pmn[201];
        int smn[201];
        pmn[0]=prv[0]+B[j][0];
        for(int k=1;k<m;k++){
          pmn[k]=min(pmn[k-1]+A[j][k-1],prv[k]+B[j][k]);
        }
        smn[m-1]=prv[m-1]+B[j][m-1];
        for(int k=m-2;k>=0;k--){
          smn[k]=min(smn[k+1]+A[j][k],prv[k]+B[j][k]);
        }
        for(int k=0;k<m;k++){
          prv[k]=min(smn[k],pmn[k]);
        }
        // cout<<i<<" "<<j<<"\n";
        // for(int j=0;j<m;j++)cout<<prv[j]<<" ";
        // cout<<"\n";
      }
      for(int j=0;j<m;j++){
        t[v].d[i][j]=prv[j];
      }
    }
    return;
  }
  int tm=(tl+tr)/2;
  if(pos<=tm)update(2*v,tl,tm,pos);
  else update(2*v+1,tm+1,tr,pos);
// cout<<"???\n";
  t[v]=mrg(t[2*v],t[2*v+1]);
}

void init(int R, int C, int H[5000][200], int V[5000][200]) {
  n=R;
  m=C;
  for(int i=0;i<R;i++){
    for(int j=0;j<C-1;j++){
      A[i][j]=H[i][j];
    }
  }
  for(int i=0;i<R-1;i++){
    for(int j=0;j<C;j++){
      B[i][j]=V[i][j];
    }
  }
  // cout<<(n+9)/10-1<<"\n";
  build(1,0,(n+9)/10-1);
}

void changeH(int P, int Q, int W) {
  A[P][Q]=W;
  update(1,0,(n+9)/10-1,(P-1)/10);
  update(1,0,(n+9)/10-1,P/10);
}

void changeV(int P, int Q, int W) {
  B[P][Q]=W;
  update(1,0,(n+9)/10-1,(P-1)/10);
  update(1,0,(n+9)/10-1,P/10);  
}

int escape(int V1, int V2) {
  return t[1].d[V2][V1];
}

Compilation message

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   15 |  int res;
      |      ^~~
wombats.cpp:3: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    3 | #pragma optimize("Ofast")
      | 
wombats.cpp:4: warning: ignoring '#pragma target ' [-Wunknown-pragmas]
    4 | #pragma target("avx2")
      | 
wombats.cpp:5: warning: ignoring '#pragma oprimize ' [-Wunknown-pragmas]
    5 | #pragma oprimize("unroll-loops")
      |

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 76 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 76 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 77 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Runtime error 74 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Runtime error 76 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
0 / 24.0

# Verdict Execution time Memory Grader output
1 Runtime error 80 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -